JP2006340767A - Thermotherapy apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermotherapy apparatus which kills only the cancer cells without damaging healthy organs. <P>SOLUTION: The thermotherapy apparatus comprises a light source 11, such as a halogen lamp, for emitting light containing infrared ray, a collimate lens 12 for converting the light emitted from the light source 11 into parallel light, a reflection mirror 13 for deflecting the parallel light converted by the collimate lens 12, a convergent lens 14 for converging the light deflected by the reflection mirror 13, and a movable mirror 15 for deflecting the light converged by the convergent lens 14 to an affected area 10 where cancer cells exist. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a thermotherapy device.

  In recent years, various treatment methods have been proposed as a cancer treatment method in addition to the conventional method of removing cancer after incision with a scalpel.

  A thermotherapy (hyperthermia) using the fact that cancer cells die at 43 degrees Celsius has been proposed (Non-patent Document 1). For example, using a magnetic resonance apparatus (MRI) or an X-ray CT apparatus, the shape and position of cancer inside the human body is confirmed, and a needle is inserted toward the cancer while viewing a three-dimensional image of the cancer. A treatment method has also been proposed in which cancer is killed by heating cancer with a heater attached to (see Non-Patent Document 2).

  In addition, instead of pricking a needle equipped with a heater, a treatment method for killing cancer cells by rotating an X-ray source around cancer inside the human body and constantly irradiating the cancer cells with X-rays has been proposed ( Non-Patent Document 3).

These therapies have the advantage that the burden on the patient is greatly reduced compared to conventional methods of removing cancer after incision with a scalpel.
“Why does hyperthermia work for“ cancer ”?” Hyperthermia Society of Japan “Search June 6, 2005” Internet <URL http://www.gakkai.net/JSHO/misc/hyp- 1.html> Material: J Magn Reson Imaging Title: MR-guided microwave thermocoagulation therapy of liver tumors: initial clinical experiences using a 0.5 T open MR system. Author: Morikawa, Shigehiro; Inubushi, Toshiro; Kurumi, Yoshimasa; Naka, Shigeyuki; Sato , Koichiro; Tani, Tohru; Yamamoto, Ikuo; Fujimura, Masaki Material: History of Medicine Title: Recent Progress in Prostate Cancer Treatment-Especially Radiotherapy External Authors: Kotaro Gomi, Koichi Michimoto

  However, even in the case of adopting the new treatment method described above, in the case of cancer in the deep part of the body, there is a problem that the needle or X-ray injuries a healthy organ on the way from the surface of the human body to the cancer cell. Arise.

  This invention was made in order to solve the said subject, and it aims at providing the thermotherapy apparatus which can kill only a cancer cell, without damaging a healthy organ.

  The invention according to claim 1 is a thermotherapy device for irradiating the affected area of the human body with light energy, and sequentially changing the irradiation angle of the light source and the light emitted from the light source to the affected area, And an optical system for converging the affected area.

  According to a second aspect of the present invention, in the first aspect of the present invention, the optical system includes a collimator lens that collimates light emitted from the light source, and light that has been collimated by the collimator lens. A converging lens for converging toward the affected part, a mirror for deflecting light converged by the converging lens toward the affected part, the converging lens and the mirror, and an optical path length from the converging lens to the affected part. Moving means for moving along the optical path in a constant state.

  According to a third aspect of the present invention, in the first aspect of the present invention, the optical system includes a collimator lens that collimates light emitted from the light source, and light that has been collimated by the collimator lens. A Fresnel lens that converges toward the affected area, and makes the light that has been made parallel light by the collimating lens move from a direction perpendicular to the Fresnel lens to be incident.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the optical system includes a collimator lens that collimates light emitted from the light source, and light that has been collimated by the collimator lens. A Fresnel lens that converges toward the affected area; a mirror that deflects light that has been collimated by the collimating lens toward the Fresnel lens; and a moving unit that moves the mirror in parallel with the Fresnel lens. Yes.

  According to a fifth aspect of the present invention, in the first aspect of the invention, the optical system includes a collimator lens that collimates light emitted from the light source, and light that has been collimated by the collimator lens. A mirror that deflects toward the affected part; a converging lens that converges the light deflected by the mirror toward the affected part; and a moving means that moves the mirror and the converging lens synchronously along an optical path; It has.

  A sixth aspect of the present invention is the optical system according to the first aspect, wherein the optical system includes a collimating lens that collimates light emitted from the light source, and light that has been collimated by the collimating lens. A converging lens for converging toward the affected area; and a moving means for moving the light source, the collimating lens, and the converging lens synchronously along an arc centered on the affected area.

  The invention according to claim 7 is the invention according to claim 1, wherein the optical system includes a collimator lens that collimates light emitted from the light source, and light that has been collimated by the collimator lens. A converging lens that converges toward the affected area; a first mirror that deflects light converged by the converging lens; a second mirror that deflects light deflected by the first mirror toward the affected area; and Rotating means for rotating the first mirror and the second mirror about the optical path is provided.

  According to the first to seventh aspects of the invention, it is possible to kill only cancer cells without damaging healthy organs.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a thermal treatment apparatus according to the first embodiment of the present invention.

  The thermal treatment apparatus includes a light source 11 such as a halogen lamp or a laser light source that emits light including infrared rays, a collimating lens 12 for making the light emitted from the light source 11 parallel light, and collimated light by the collimating lens 12. A folding mirror 13 for deflecting the formed light, a converging lens 14 for converging the light deflected by the folding mirror 13, and deflecting the light converged by the converging lens 14 toward the affected area 10 where cancer cells are present. A moving mirror 15.

  In FIG. 1, the lenses such as the collimating lens 12 and the converging lens 14 are represented by a single lens. However, these lenses may function by combining a plurality of lenses. The same applies to other embodiments described later.

  The light source 11, the collimating lens 12 and the folding mirror 13 are fixed to a floor on which a magnetic resonance apparatus (MRI) and an X-ray CT apparatus (hereinafter collectively referred to as “MRI etc.”) are installed. For this reason, the light source 11, the collimating lens 12, and the folding mirror 13 can be installed in a separate room or the like sufficiently away from the converging lens 14. In this case, the maintenance of the light source 11 can be easily performed.

  The converging lens 14 is connected to a first moving frame 21 that can reciprocate with respect to the base member 20. That is, the first movable frame 21 is connected to the base member 20 via a guide member (not shown), and reciprocates in a direction parallel to the optical path of the light deflected by the folding mirror 13 by the action of a motor 35 described later. It is movable. The base member 20 is fixed to the floor on which the MRI or the like is installed or the MRI or the like itself through a mechanism that can adjust the position of the affected part 10 in the vertical and horizontal directions.

  The moving mirror 15 is connected to the second moving frame 22 via the swing mechanism 23. This swing mechanism 23 is also for receiving a drive of a motor 37 to be described later and swinging the movable mirror 15 about the shaft 24. Further, the second moving rack 22 can be reciprocated with respect to the first moving rack 21. That is, the second moving rack 22 is connected to the first moving rack 21 via a guide member (not shown), and is parallel to the optical path of the light deflected by the folding mirror 13 by the action of the motor 36 described later. Can be moved back and forth.

  FIG. 2 is a block diagram showing a main electrical configuration of the above-described thermal treatment apparatus.

  The thermal treatment apparatus includes a control unit 30 including a ROM 31 that stores an operation program necessary for controlling the apparatus, a RAM 32 that temporarily stores data and the like during control, and a CPU 33 that executes a logical operation. The control unit 30 includes the light source 11, the motor 35 for reciprocating the first moving frame 21, the motor 36 for reciprocating the second moving frame 22, and the moving mirror 15 via the interface 34. It is connected with the motor 37 for rocking.

  When performing treatment with the thermotherapy apparatus having the above-described configuration, the position of the affected area 10 is specified in advance using MRI or the like. The light from the light source 11 is collimated by the collimator lens 12, converged by the converging lens 14, and converged on the affected area 10 by the moving mirror 15. That is, this light converges on the affected part 10 while diffusing and scattering after entering the human body.

  In this state, the converging lens 14 and the moving mirror 15 are moved in a direction parallel to the optical path of the light deflected by the folding mirror 13 by driving the motors 35 and 36. Then, in order to converge the light deflected by the folding mirror 13 toward the affected part 10 regardless of the movement of the moving mirror 15, the swing mechanism 23 is operated by driving the motor 37 to change the angle of the moving mirror 15. .

  The moving speed between the converging lens 14 and the moving mirror 15 is the moving speed at which the optical path length from the converging lens 14 to the affected area 10 via the moving mirror 15 always matches the focal length of the converging lens 14. To do. The control unit 30 is configured such that the optical path length from the converging lens 14 to the affected part 10 via the moving mirror 15 always matches the focal length of the converging lens 14, and the light deflected by the folding mirror 13 converges toward the affected part 10. Thus, the rotational speeds of the motors 35, 36, and 37 are controlled.

  Thereby, the light emitted from the light source 11 converges on the affected area 10 while sequentially changing the irradiation angle on the affected area 10. For this reason, the temperature of the affected area 10 where the light converges increases. In general, cancer cells die at 43 degrees Celsius. Therefore, cancer cells can be effectively killed by the temperature rise of the affected area 10 caused by the converged light. At this time, the light incident on the human body converges on the affected part 10 while sequentially changing the irradiation angle, so that the healthy organs in front of the cancer are not damaged.

  The moving speed of the converging lens 14 and the moving mirror 15 does not need to be high as long as it does not damage a healthy organ in front of cancer. Further, the converging lens 14 and the moving mirror 15 may execute light irradiation to the affected area 10 during one stroke of moving from the left end position in FIG. 1 to the right end position indicated by the phantom line. Light irradiation may be performed by reciprocating the lens 14 and the movable mirror 15 a plurality of times.

  In the above-described embodiment, the light source 11, the collimating lens 12 and the folding mirror 13 are sufficiently separated from the converging lens 14 by fixing the light source 11, the collimating lens 12 and the folding mirror 13 to the floor where the MRI or the like is installed. It is possible to install in a separate room or the like, thereby enabling easy maintenance of the light source 11 and the like. However, the present invention is not limited to such a form.

  FIG. 3 is a schematic diagram of a thermotherapy device according to the second embodiment of the present invention, and FIG. 4 is a schematic diagram of a thermotherapy device according to the third embodiment of the present invention. In addition, about the member similar to 1st Embodiment mentioned above, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The thermotherapy apparatus according to the second embodiment shown in FIG. 3 has a configuration in which the light source 11 and the collimating lens 12 are fixed to the base member 20. In the thermotherapy device according to the third embodiment shown in FIG. 4, the light source 11 and the collimating lens 12 are fixed to the first moving frame 21 and moved together with the converging lens 14. In any of these cases, since the light after passing through the collimating lens 12 is parallel light, the same operations and effects as in the first embodiment are achieved.

  Next, another embodiment of the present invention will be described. FIG. 5 is a schematic diagram of a thermal treatment apparatus according to the fourth embodiment of the present invention.

  The thermotherapy apparatus according to the fourth embodiment includes a light source 11 such as a halogen lamp or a laser light source that emits light including infrared rays, a collimator lens 12 for making the light emitted from the light source 11 parallel light, and a collimator The folding mirror 13 for deflecting the light that has become parallel light by the lens 12, the moving mirror 42 for deflecting the light deflected by the folding mirror 13, and the light deflected by the moving mirror 42 converge toward the affected area 10. And a Fresnel lens 43 to be operated.

  The Fresnel lens 43 is supported by the base member 20. The Fresnel lens 43 is placed at a position where the focal point on the optical axis coincides with the position of the affected part 10 during light irradiation. The width of the Fresnel lens 43 in the direction orthogonal to the moving direction of the moving mirror 42 (the direction perpendicular to the paper surface in FIG. 5) may be equal to or larger than the diameter of the light incident thereon.

  The movable mirror 42 is connected to a movable frame 41 that can reciprocate relative to the base member 20. That is, the movable frame 41 is connected to the base member 20 via a guide member (not shown), and can be reciprocated in a direction parallel to the optical path of the light deflected by the folding mirror 13 by the action of a motor (not shown). It has become. The base member 20 is fixed to the floor on which the MRI or the like is installed or the MRI or the like itself through a mechanism that can adjust the position of the affected part 10 in the vertical and horizontal directions.

  As in the first embodiment, the light source 11, the collimating lens 12, and the folding mirror 13 are fixed to a floor on which an MRI or the like is installed. For this reason, the light source 11, the collimating lens 12, and the folding mirror 13 can be installed in a separate room or the like sufficiently away from the converging lens 14. In this case, the maintenance of the light source 11 can be easily performed.

  Note that the thermotherapy device according to the fourth embodiment also includes a control unit 30 that controls a motor for reciprocating the moving mirror 42 together with the moving frame 41, as in the thermotherapy device according to the first embodiment.

  When performing treatment with the thermotherapy apparatus having the above-described configuration, the position of the affected area 10 is specified in advance using MRI or the like. The light from the light source 11 is collimated by the collimator lens 12, then deflected by the moving mirror 42, and vertically incident on the Fresnel lens 43. Thereby, the light is converged by the action of the Fresnel lens 43. The light converges on the affected area 10 while being diffused and scattered after entering the human body.

  In this state, the movable mirror 42 is moved in a direction parallel to the optical path of the light deflected by the folding mirror 13 by driving a motor (not shown).

  Thereby, the light emitted from the light source 11 converges on the affected area 10 while sequentially changing the irradiation angle on the affected area 10. For this reason, the temperature of the affected area 10 where the light converges increases. The cancer cells can be effectively killed by the temperature rise of the affected area 10 due to the converged light. At this time, the light incident on the human body converges on the affected part 10 while sequentially changing the irradiation angle, so that the healthy organs in front of the cancer are not damaged.

  Note that the moving speed of the moving mirror 42 need not be high as long as it does not damage healthy organs in front of cancer. Further, the moving mirror 42 may execute light irradiation to the affected area 10 during one stroke of moving from the left end position indicated by the solid line to the right end position indicated by the phantom line in FIG. The light irradiation may be executed by reciprocating a plurality of times.

  In the fourth embodiment, the light source 11, the collimating lens 12 and the folding mirror 13 are fixed to the floor on which the MRI and the like are installed. However, as in the second embodiment, the light source 11 and the collimating lens 12 are used as a base. A structure that is fixed to the member 20 may be adopted. Further, the light source 11 and the collimator lens 12 are attached to the movable frame 41 instead of the movable mirror 42, and the position of the light collimated by the collimator lens 12 is moved from the direction perpendicular to the Fresnel lens 43. It is also possible to adopt a configuration in which the light is incident.

  Next, still another embodiment of the present invention will be described. FIG. 6 is a schematic diagram of a thermal treatment apparatus according to the fifth embodiment of the present invention.

  The thermotherapy apparatus according to the fifth embodiment includes a light source 11 such as a halogen lamp or a laser light source that emits light including infrared rays, a collimator lens 12 for making the light emitted from the light source 11 parallel light, and a collimator The folding mirror 13 for deflecting the light that has become parallel light by the lens 12, the moving mirror 52 for deflecting the light deflected by the folding mirror 13, and the light deflected by the moving mirror 52 converge toward the affected area 10. And a converging lens 55 to be provided.

  The movable mirror 52 and the converging lens 55 are connected to a movable frame 51 that can reciprocate relative to the base member 20. That is, the movable frame 51 is connected to the base member 20 via a guide member (not shown), and can be reciprocated in a direction parallel to the optical path of the light deflected by the folding mirror 13 by the action of a motor (not shown). It has become. The base member 20 is fixed to the floor on which the MRI or the like is installed or the MRI or the like itself through a mechanism that can adjust the position of the affected part 10 in the vertical and horizontal directions.

  The moving mirror 52 is connected to the moving frame 51 via the swing mechanism 53. This swing mechanism 53 is also for receiving the drive of a motor (not shown) and swinging the movable mirror 52 about the shaft 54.

  As in the first to fourth embodiments, the light source 11, the collimating lens 12, and the folding mirror 13 are fixed to a floor on which an MRI or the like is installed. For this reason, the light source 11, the collimating lens 12, and the folding mirror 13 can be installed in a separate room or the like sufficiently away from the converging lens 14. In this case, the maintenance of the light source 11 can be easily performed.

  Note that the thermotherapy device according to the fifth embodiment also controls the motor for reciprocating the movable frame 51 and the motor for driving the drive mechanism, similarly to the thermotherapy device according to the first embodiment. A control unit 30 is provided.

  When performing treatment with the thermotherapy apparatus having the above-described configuration, the position of the affected area 10 is specified in advance using MRI or the like. The light from the light source 11 is converted into parallel light by the collimator lens 12, deflected by the moving mirror 52, and is incident on the converging lens 55. In general, when parallel light is incident on the converging lens 55 at an angle θ, the light is converged to a point separated by f · tan θ from the optical axis of the converging lens. For this reason, the angle of the movable mirror 52 is controlled according to the position of the movable frame 51 to converge the light on the affected part 10. The light converges on the affected area 10 while being diffused and scattered after entering the human body.

  In this state, the movable frame 51 is moved together with the moving mirror 52 and the converging lens 55 in a direction parallel to the optical path of the light deflected by the folding mirror 13 by driving a motor (not shown). Then, the angle of the movable mirror 52 is controlled in accordance with the amount of movement of the movable frame 51 so that the light is always converged on the affected area 10.

  Thereby, the light emitted from the light source 11 converges on the affected area 10 while sequentially changing the irradiation angle on the affected area 10. For this reason, the temperature of the affected area 10 where the light converges increases. The cancer cells can be effectively killed by the temperature rise of the affected area 10 due to the converged light. At this time, the light incident on the human body converges on the affected part 10 while sequentially changing the irradiation angle, so that the healthy organs in front of the cancer are not damaged.

  The moving speed of the moving mirror 52 and the converging lens 55 need not be high as long as it does not damage healthy organs in front of cancer. Further, the movable mirror 52 and the converging lens 55 may execute light irradiation to the affected area 10 during one stroke of moving from the left end position indicated by the solid line to the right end position indicated by the phantom line in FIG. The light irradiation may be executed by reciprocating the moving mirror 52 and the converging lens 55 a plurality of times.

  In this embodiment, when an f · θ lens is used as the converging lens 55, the moving speed of the moving rack 51 can be made constant, and the motor for moving the moving rack 51 is controlled. It becomes possible to make it easy.

  In the fifth embodiment, the light source 11, the collimating lens 12 and the folding mirror 13 are fixed to the floor on which the MRI or the like is installed. However, the light source 11 and the collimating lens 12 are the same as in the second and third embodiments. May be employed to be fixed to the base member 20 or the movable frame 51.

  Next, still another embodiment of the present invention will be described. FIG. 7 is a schematic view of a thermal treatment apparatus according to the sixth embodiment of the present invention.

  The thermotherapy apparatus according to the sixth embodiment includes a light source 11 such as a halogen lamp or a laser light source that emits light including infrared rays, a collimator lens 12 for making the light emitted from the light source 11 parallel light, and a collimator An irradiation head 57 having a converging lens 14 for converging light that has become parallel light by the lens 12 toward the affected area 10 is provided. The irradiation head 57 is movable along an arcuate guide member 58 and is configured to move from a left end position indicated by a solid line to a right end position indicated by an imaginary line in FIG. 7 by driving a motor (not shown). It has become. The guide member 58 includes a mechanism that can adjust the position of the affected area 10 in the vertical and horizontal directions, and is set at a position where the center of the arc coincides with the position of the affected area 10 when light is irradiated. .

  Note that the thermotherapy device according to the sixth embodiment also includes a control unit 30 that controls a motor for reciprocating the irradiation head 57, similarly to the thermotherapy device according to the first embodiment.

  When performing treatment with the thermotherapy apparatus having the above-described configuration, the position of the affected area 10 is specified in advance using MRI or the like. The light from the light source 11 is collimated by the collimator lens 12 and then converged on the affected area 10 by the converging mirror 14. The light converges on the affected area 10 while being diffused and scattered after entering the human body.

  In this state, it is moved along the irradiation head 57 guide member 58 by driving a motor (not shown). Thereby, the light emitted from the light source 11 converges on the affected area 10 while sequentially changing the irradiation angle on the affected area 10. For this reason, the temperature of the affected area 10 where the light converges increases. The cancer cells can be effectively killed by the temperature rise of the affected area 10 due to the converged light. At this time, the light incident on the human body converges on the affected part 10 while sequentially changing the irradiation angle, so that the healthy organs in front of the cancer are not damaged.

  The moving speed of the irradiation head 57 does not need to be high as long as it does not damage a healthy organ in front of cancer. In addition, the irradiation head 57 may execute light irradiation to the affected area 10 during one stroke moving from the left end position indicated by the solid line to the right end position indicated by the phantom line in FIG. The light irradiation may be executed by reciprocating a plurality of times.

  Next, still another embodiment of the present invention will be described. FIG. 8 is a schematic diagram of a thermal treatment apparatus according to the seventh embodiment of the present invention.

  The thermotherapy apparatus according to the seventh embodiment includes a light source 11 such as a halogen lamp or a laser light source that emits light including infrared rays, a collimator lens 12 for making the light emitted from the light source 11 parallel light, and a collimator And a converging lens for converging the light that has become parallel light by the lens 12 toward the affected area. The light source 11, the collimating lens 12, and the converging lens 14 are connected to the base member 20. The base member 20 is fixed to the floor on which the MRI or the like is installed or the MRI or the like itself through a mechanism that can adjust the position of the affected part 10 in the vertical and horizontal directions.

  The thermotherapy device according to the seventh embodiment includes a first mirror 61 and a second mirror 62, and includes a deflection member 63 that can rotate around a shaft 64 connected to the base member 20. The axis 64 is disposed on the optical axis of the collimating lens 12 and the converging lens 14. The deflecting member 63 rotates about the shaft 64 by driving a motor (not shown).

  Note that the thermotherapy device according to the eighth embodiment also includes a control unit 30 that controls a motor for rotating the deflection member 63, as in the thermotherapy device according to the first embodiment.

  When performing treatment with the thermotherapy apparatus having the above-described configuration, the position of the affected area 10 is specified in advance using MRI or the like. The light from the light source 11 is collimated by the collimator lens 12 and then converged by the converging lens 14. Then, this light is deflected toward the second mirror 62 by the first mirror 61, and is deflected toward the affected part 10 by the second mirror 62. The light converges on the affected area 10 while being diffused and scattered after entering the human body.

  In this state, the deflection member 63 is rotated about the shaft 64 by driving a motor (not shown). Thereby, the light emitted from the light source 11 converges on the affected part 10 while changing the irradiation angle on the affected part 10 within a range of 360 degrees. For this reason, the temperature of the affected area 10 where the light converges increases. The cancer cells can be effectively killed by the temperature rise of the affected area 10 due to the converged light. At this time, the light incident on the human body converges on the affected part 10 while sequentially changing the irradiation angle, so that the healthy organs in front of the cancer are not damaged.

  In the seventh embodiment, the light source 11 and the collimating lens 12 are fixed to the base member 20. However, as in the first embodiment, the light source 11 and the collimating lens 12 are placed on the floor where the MRI or the like is installed. It may be fixed.

  It is also possible to connect the thermotherapy apparatus according to each embodiment described above to an MRI or the like, receive various data from the MRI or the like, and automatically irradiate the affected area 10 with light.

1 is a schematic diagram of a thermal treatment apparatus according to a first embodiment of the present invention. It is a block diagram which shows the main electric structures of a thermotherapy apparatus. It is a schematic diagram of the thermotherapy apparatus which concerns on 2nd Embodiment of this invention. It is a schematic diagram of the thermotherapy apparatus which concerns on 3rd Embodiment of this invention. It is a schematic diagram of the thermotherapy apparatus which concerns on 4th Embodiment of this invention. It is a schematic diagram of the thermal treatment apparatus which concerns on 5th Embodiment of this invention. It is a schematic diagram of the thermotherapy apparatus which concerns on 6th Embodiment of this invention. It is a schematic diagram of the thermotherapy apparatus which concerns on 7th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Affected part 11 Light source 12 Collimating lens 13 Folding mirror 14 Converging lens 15 Moving mirror 20 Base member 21 First moving frame 22 Second moving frame 30 Control unit 35 Motor 36 Motor 37 Motor 42 Moving mirror 43 Fresnel lens 52 Moving mirror 53 Oscillation Mechanism 54 Axis 55 Converging lens 57 Irradiation head 58 Guide member 61 First mirror 62 Second mirror 63 Deflection member

Claims (7)

A thermotherapy device for irradiating a human body with light energy,
A light source;
An optical system that converges the light emitted from the light source with respect to the affected area while sequentially changing the irradiation angle to the affected area;
A thermotherapy device characterized by comprising: In the thermotherapy apparatus of Claim 1,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A converging lens that converges the light that has become parallel light by the collimating lens toward the affected area;
A mirror that deflects light converged by the converging lens toward the affected area;
Moving means for moving the converging lens and the mirror along the optical path in a state where the optical path length from the converging lens to the affected part is constant;
A thermotherapy device comprising: In the thermotherapy apparatus of Claim 1,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A Fresnel lens that converges the light that has become parallel light by the collimating lens toward the affected area;
A thermotherapy apparatus that causes the light that has been made parallel by the collimator lens to be incident from a direction perpendicular to the Fresnel lens. In the thermotherapy apparatus of Claim 3,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A Fresnel lens that converges the light that has become parallel light by the collimator lens toward the affected area;
A mirror that deflects the light that is collimated by the collimating lens toward the Fresnel lens;
Moving means for moving the mirror in parallel with the Fresnel lens;
A thermotherapy device comprising: In the thermotherapy apparatus of Claim 1,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A mirror that deflects the light that has become parallel light by the collimating lens toward the affected area;
A converging lens that converges the light deflected by the mirror toward the affected area;
Moving means for moving the mirror and the converging lens synchronously along an optical path;
A thermotherapy device comprising: In the thermotherapy apparatus of Claim 1,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A converging lens that converges the light that has become parallel light by the collimating lens toward the affected area;
Moving means for synchronously moving the light source, the collimating lens and the converging lens along an arc centered on the affected area;
A thermotherapy device comprising: In the thermotherapy apparatus of Claim 1,
The optical system is
A collimating lens that collimates the light emitted from the light source;
A converging lens that converges the light that has become parallel light by the collimating lens toward the affected area;
A first mirror for deflecting light converged by the convergent lens;
A second mirror for deflecting light deflected by the first mirror toward the affected area;
Rotating means for rotating the first mirror and the second mirror about an optical path;
A thermotherapy device comprising:

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